\noindent Here are some examples to illustrate the tpar program and the `T' triangle, `L' lexical, `O' omit, `M' mother, `D' daughter, and `P' phantom tree commands. %% For tty output, use %% % tpar tpsample |tree |more %% or % tpar -t tpsample |tree |more %% For TeX output, use %% % tpar -t tpsample |tree -t >tpsample.tex %% or % tpar -t tpsample |tree -u >tpsample.tex This is from the man page: (ex8) \tree \T S every good boy VP \L V - does \L A - fine A couple of examples from McCawley's text: p. 35 (6)\tree -b2 S[0] S[1] S[2] NP\T - the terrorists VP V\L - shoot NP\T - the hostage n't Adv\L - probably The V' with `say' in this next example came out too wide, originally, because the two constituents following the V, the P' and NP, couldn't be put close enough together. I wanted to lower the S[2] under the NP so it would go closer to the preceding P', so I've put a node with no name but with command Z between the NP and the S[2] below it. The Z command does not do anything except hold a place in the tree; it's a little tricky. p. 689 (8)\tree S[0] NP[x] the S[3] NP - you V'\T - send $x$ many Christmas\L - cards to your friends S[1] NP - it V' V\L - say P'\T - in the Times Al. NP \Z S[2] NP\T - President R V'\T send more than\L - $x$ Christmas cards to\L - Republican supporters In this example from McCawley, p. 310, the V is made an unnatural mother of the Adv with the M and D commands, and the line that would have connected the Adv to the S is omitted with the O command. The original position of the Adv is marked with a phantom, to get the tree to look like something belongs here. (6b) \tree V' \M V V\L - prove ghost\P NP S\T - that the earth is round \D\O Adv\L - conclusively From McCawley, p. 423. There are two side-by-side trees here, but the left one has omitted lines, so that all that is visible is `RNR' and the arrow. The N-bar is connected to the S `who teach ...' with M and D commands, but the line connecting the S to its natural mother remains. To get the line connecting the two N-bars to slant to the left, the P command is used to put a phantom constituent in the original position of the RNR'd S. That first Z command is there just to hold a place in the tree. (21) \tree \Z \O - \O - RNR\O\L - ---$>$ NP NP Det\L - most N'\M N' - N\L - linguists some room\P and NP Det\L - almost\L - all N' N' - N\L - anthro-\L - pologists S\D\T - who teach at\L - American\L - universities \bye