ετεροι adjective - nominative plural masculine
heteros  het'-er-os: (an-, the) other or different -- altered, else, next (day), one, (an-)other, some, strange.
δε conjunction
de  deh: but, and, etc. -- also, and, but, moreover, now (often unexpressed in English).
πειραζοντες verb - present active passive - nominative plural masculine
peirazo  pi-rad'-zo: to test (objectively), i.e. endeavor, scrutinize, entice, discipline -- assay, examine, go about, prove, tempt(-er), try.
σημειον noun - accusative singular neuter
semeion  say-mi'-on: an indication, especially ceremonially or supernaturally -- miracle, sign, token, wonder.
παρ preposition
para  par-ah': near; i.e. (with genitive case) from beside, (with dative case) at (or in) the vicinity of (objectively or subjectively), (with accusative case) to the proximity with
αυτου personal pronoun - genitive singular masculine
autos  ow-tos': the reflexive pronoun self, used of the third person , and (with the proper personal pronoun) of the other persons
εζητουν verb - imperfect active indicative - third person
zeteo  dzay-teh'-o: to seek; specially, (by Hebraism) to worship (God), or (in a bad sense) to plot (against life)
εξ preposition
ek  ek: a primary preposition denoting origin (the point whence action or motion proceeds), from, out (of place, time, or cause literal or figurative; direct or remote)
ουρανου noun - genitive singular masculine
ouranos  oo-ran-os': the sky; by extension, heaven (as the abode of God); by implication, happiness, power, eternity; specially, the Gospel (Christianity) -- air, heaven(-ly), sky.